laekin



(No Model.)

P. o. LARKIN.

PAGKING MAGHINB. No. 567,145. Patented sept. a, 1896.

AUNITED STATES PATENT Erica.

PETER C. LARKIN, OF TORONTO, CANADA.

PACKING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 567,145, datedSeptember 8, 1896. Application iledrOctober 11, 1895. Serial No.565,363. (No model.)

To all whom t may concern,.-

Be it known that I, PETER CHARLES LAR- KIN, of the city of'Toronto, inthe county of York and Province of Ontario, Canada, have inventedcertain new and useful Improvements in Packing-Machines; and I herebydeclare that the following is a full, clear, and exact description ofthe same.

This invention relates to certain new and useful improvements inpacking-machines; and the object of the invention is to provide themachine with a packing-plunger which can be easily operated with greatforce to reduce the bulk of the contents of the package, and which, onits release from the application of power, will automatically andinstantaneously return to its normal position; to so arrange the funneland its operating parts that immediately after the filling of thepackage the funnel can be easily and expeditiously removed, leaving thetop of the package in such a condition that it can be readily closed; toprovide Va means for pressing the closed top on the contents tohermetically seal the package and prevent the admission to its contentsof the atmosphere, with the various elements with which it is laden, andto provide Va means for easily discharging the filled package from themachine, the whole device being hereinafter more fully set forth, andmore particularly pointed out in the claims.

In the drawings, Figure l is a perspective view of the packing-machine,showing the packing-plunger in a position about to de- ,scend. Fig. 2 isa perspective view showing the packing-plunger after having descendedand the funnel lifted from the package.

Like letters of reference refer to like parts throughout thespecification and drawings.

The packing-machine consists of a standard A, having a crane-shaped topB. In the front of the crane-shaped top B is a vertical guide C for`thepacking-plunger D.

Connected to the front of the standard A, about midway between thecrane-shaped top B and the base E, is a table F to receive thechangeable molds G.

Working vertically in the guide C is the packing-plunger D. Connected tothe top of the packing-plungerD is a collar H, from the side of whichprojects apin I. Mounted on the packing-plunger D, below the verticalguides C, is a collar J to arrest the upward movement of thepacking-plunger D on the completion of its stroke during its return toits normal position. The lower end of the plunger D is iitted with aremovable head K, constructed to it the interior of the funnel.Projecting from the side of the standard A, betweenthe table F and theunder side of the crane-shaped top B, is apin L, and mounted on the pinL is an L-shaped lever M. The short arm m makes with the long arm fm ofthe said lever an angle of approximately one hundred and twenty-fivedegrees, and projects to the rear ofthe packing-machine. The long arm mof the L-shaped lever M, when in its normal position,is set at an angleof about forty-five degrees to the perpendicular of themachine. Thus theshort arm m will be substantially horizontal. When the long arm m of thelever IWI is depressed to operate the plunger D, it moves over an arc ofapproximately sixty ve degrees, which would bring the short arm fm, intoa nearly perpendicular position, and when the short arm isfitted withits counterbalance the nearer to the perpendicular that the short arm isbrought the less force it requires to counteract the weight of thecounterbalance, thus enabling the operator to apply his full strength inforcing the head of the packingplunger on the contents of the package.In addition to enabling the operator to exercise his full strength wherethe greatest' force is required, vthe arrangement of lthe arms relievesthe operator from an unnecessary application of strength whereforce isnotrequired.

Projecting from the inner side of the long arm m of the lever M, betweenthe pin L and the end of the lever, is a pin N, and connected to thepins I N is a pitman O, by means of which the plunger D is operated bythe movement of the L-shaped lever M. Mounted on the short arm m of theL-shaped lever M is a counterbalance P to return the lever and plungerto their normal position when released from the application of power.

Formed through the table F is an opening Q to receive the mold G.Projecting outward from the top of the mold G is a rectangular flange R,which rests on the metal of IOO the table F, surrounding the openin Q.The flange R supports the mold in position. The opening S of the mold Gextends completely through the mold, and located in the bottom of theopening S is the head T and upper end of a plunger U, to which the headT is connected. rlhe lower end of the plunger U is connected to one endof an L-shaped treadle V and is adapted to be raised thereby during thedepression of the opposite end of the treadle. Formed through the flangeR, on opposite sides of the middle of the opening S, are tivo openingsIV.

Located Within the openings W are the upper ends of two vertical rods X,supported in suitable guides connected to the frame A below the table F.Connected to each of the rods X is a pin Z, and mounted on each 0i' thepins Z is a roller a. Pivoted to the standard A are the forked ends of abifurcated lever a', the forked ends of which are so arranged as to becontiguous to the vertical rods X. The rollers a are located on the topot the forked ends of the bifurcated lever a', and by raising thebifurcated lever the vertical rods X are lifted to their fullestcapacity, and on the release of the lever a from its lifting force thelever and rods X fall by gravity into their normal position. To causethe sharp return of the lever a to its normal position, I connect toeach of the forked ends a spring b, which is also connected to thestandard A. Hinged to the standard A, contiguous to the top of the tableF, is one end of a spring-operated p1esse1leaff,which is adapted topress down the top of the package after it has been folded. The funnelconsists of a funnelshaped top c and a sleeve or box-shaped former d,connected with the funnel-shaped top c. Each side of the former d,contiguous to the top c, is provided with a lug or projection c, againstwhich is adapted to operate the upper ends of the vertical rods X.

The operation of the machine is as follows: The package is formed on thebox-shaped former d with the bottom of the package securely closed. Thefunnel is then inserted into the tea-mold G, with the bottom of thepackage resting on the head T of the plunger U. The contents are thenpoured into the funnel-shaped top c and descend into the package. TheL-shaped lever M is then operated to bring the head of thepacking-plunger sharply down on the contents of the package and compressthem into a smaller bulk. rlhe bifurcated lever a is then lifted andduring its lifting motion lifts the vertical rods X, which in turn liftthe funnel from the package. The L-shaped lever M is then released andthe counterbalance P returns the L- shaped lever M and packing-plunger Dto their normal position. The funnel is then removed and the top of thepackage is folded and closed. The presser-leaf f is then turned down onthe top of the package and the lever M is again operated to bring thepackingplunger D With force on the presser-leaf fand cause thepresser-leaf f to tightly close the top of the package. The treadle V isthen operated to cause the plunger U to throw the package from the moldG, after which it is labeled and sealed.

Vhile this machine is intended to be used as a tea-packing machine,still I do not coniine myself to using it solely for this purpose, as Imay employ it for the purpose of packing any other eompressibleunbreakable substance Which it is required to reduce into the smallestpossible bul-k.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. A packing-machine, comprising a standard having a crane-shaped top, apackingplunger, guided in the upper end of the standard, a table securedto and supported by the standard, a mold having projected flanges andsupported by the table and adapted to receive a funnel, said funnelhaving at its upper portion laterally-projecting lugs, vertical rodsadapted to contact with the lower surface of said lugs, and a bifurcatedlever pivoted to the standard and adapted to support the vertical rods,and a spring connected at one end to the upper end of the bifurcatedlever and the other end connected to the standard, said spring servingto return said lever to its normal position, substantially as shown anddcscribed.

2. A packing-machine, comprising a standard having a crane-shaped topand carrying a guide, a packing-plunger supported in said guide, meansfor receiving and supporting a package and funnel, a counterbalanced L-shaped lever having ,a pitman connection therewith for operating saidplunger, a table carried by the standard for supporting a flanged mold,vertical rods for contacting with projections on the upper portion ofthe funnel, the ilan ged mold having perforations serving as guides forsaid vertical rods, a bifurcated lever pivoted to the standard andadapted to support and operate the rods, and a spring connected to thelever and to the standard for returning the lever to its normalposition, substantially as shown and described.

3. A packing-machine, comprising a standard, carrying a guide, apacking-plunger, a table carried by the standard, said table bel ingadapted to receive and support a flanged mold, a presser-leaf hinged tothe standard and adapted to fold and press the top of the package,vertical rods passing through perforations in the flanged mold, alaterally-proj ecting roller, a bifurcated lever for supporting andoperating said rods and adapted to contact with said roller, and aspring connected to the lever and standard, substantially as shown anddescribed.

4C. A packing-machine consisting of a standard, a crane-shaped top forthe standard, a vertical guide carried by the crane-shaped top, apacking-plunger vertically movable in the said guide, a table supportedby the stand` IOO ard, an opening,l through the table to receive JcheJsable, a counterbalance fitted to the short a funnel, two vertical rodsbelow the table, a arm of the lever, a pitman connected to thebifureated lever pivoted to the standard belever and to thepacking-plunger, and a loW the table, and adaptedto operate theverpresser-leaf adapted to fold the top of the I 5 5 tical rods,a springconnected to the standard package on the contents, substantially as andto the bifurcated lever to cause its return specified.

to its normal position when Jche application Toronto, September 28, A.D. 1895.

of power is released, a treadle, a plunger con- P. C. LARKIN. neced toone arm of the treadle, adapted to In presence of Io discharge thepackage from the machine, an DONALD C. RIDOUT,

L-shaped lever pivoted to the standard. above J. E. CAMERON.

